Homeowners Mike and Shannon have lived in their home for many years. Over the last few years, they have noticed that the sidewalk and driveways of their home were cracking and sinking. They hated that it was an eyesore to the curb appeal of their home and also a safety hazard. They decided to call MidAmerica Basement Systems to learn more about the Concrete Repair serviced offered. Polyurethane foam is injected under the concrete slab, the foam fills the void under the slab. The foam expands and hardens lifting and leveling the concrete.